Slow light in dielectric composite materials of metal nanoparticles

Abstract

We propose a method for slowing down light pulses by using composites doped with metal nanoparticles. The underlying mechanism is related to the saturable absorption near the plasmon resonance in a pump-probe regime, leading to strong dispersion of the probe refractive index and significantly reduced group velocities. By using the non-collinear scheme, it is possible to realize the total fractional delay of 43 or larger values. This scheme promises simple and compact slow-light on-chip devices with tunable delay and THz bandwidth.

References in corpus (1)

• Wide-bandwidth, tunable, multiple-pulse-width optical delays using slow light in cesium vapor

Cited by in corpus (2)

• Polariton excitation in epsilon-near-zero slabs: transient trapping of slow light
• All-optical delay of images by backward four-wave mixing in metal-nanoparticle composites